Nothing is known about Holman except that he appears to have designed the first Stock Exchange in Johannesburg in 1887 and the Anglican Church of St Mary-the-Less in the same year.
(The Star 17.1.1985; Van der Waal 1984, 1987)
All truncated references not fully cited in 'References' are those of Joanna Walker's original text and cited in full in the 'Bibliography' entry of the Lexicon.